diff options
Diffstat (limited to 'libbb/deb_extract.c')
| -rw-r--r-- | libbb/deb_extract.c | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/libbb/deb_extract.c b/libbb/deb_extract.c deleted file mode 100644 index f641939..0000000 --- a/libbb/deb_extract.c +++ /dev/null @@ -1,124 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * Copyright (C) tons of folks. Tracking down who wrote what - * isn't something I'm going to worry about... If you wrote something - * here, please feel free to acknowledge your work. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Based in part on code from sash, Copyright (c) 1999 by David I. Bell - * Permission has been granted to redistribute this code under the GPL. - * - */ - -#include <fcntl.h> -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include "libbb.h" - -int seek_sub_file(FILE *in_file, file_headers_t *headers, const char *tar_gz_file) -{ - /* find the headers for the specified .tar.gz file */ - while (headers != NULL) { - if (strcmp(headers->name, tar_gz_file) == 0) { - fseek(in_file, headers->offset, SEEK_SET); - return(EXIT_SUCCESS); - } - headers = headers->next; - } - - return(EXIT_FAILURE); -} - -/* - * The contents of argument depend on the value of function. - * It is either a dir name or a control file or field name(see dpkg_deb.c) - */ -char *deb_extract(const char *package_filename, FILE *out_stream, const int extract_function, - const char *prefix, const char *filename) -{ - FILE *deb_stream, *uncompressed_stream; - file_headers_t *ar_headers = NULL; - file_headers_t *tar_headers = NULL; - file_headers_t *list_ptr; - file_headers_t *deb_extract_list = (file_headers_t *) calloc(1, sizeof(file_headers_t)); - - char *ared_file = NULL; - char *output_buffer = NULL; - int gunzip_pid; - - if (extract_function & extract_control_tar_gz) { - ared_file = xstrdup("control.tar.gz"); - } - else if (extract_function & extract_data_tar_gz) { - ared_file = xstrdup("data.tar.gz"); - } - - /* open the debian package to be worked on */ - deb_stream = wfopen(package_filename, "r"); - - ar_headers = (file_headers_t *) xmalloc(sizeof(file_headers_t)); - - /* get a linked list of all ar entries */ - ar_headers = get_ar_headers(deb_stream); - if (ar_headers == NULL) { - error_msg("Couldnt get ar headers\n"); - return(NULL); - } - - /* seek to the start of the .tar.gz file within the ar file*/ - fseek(deb_stream, 0, SEEK_SET); - if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) { - error_msg("Couldnt seek to file %s", ared_file); - } - - /* get a linked list of all tar entries */ - tar_headers = get_tar_gz_headers(deb_stream); - if (tar_headers == NULL) { - error_msg("Couldnt get tar headers\n"); - return(NULL); - } - - if (extract_function & extract_one_to_buffer) { - list_ptr = tar_headers; - while (list_ptr != NULL) { - if (strcmp(filename, list_ptr->name) == 0) { - deb_extract_list = append_archive_list(deb_extract_list, list_ptr); - break; - } - list_ptr = list_ptr->next; - } - } else { - deb_extract_list = tar_headers; - } - - /* seek to the start of the .tar.gz file within the ar file*/ - if (seek_sub_file(deb_stream, ar_headers, ared_file) == EXIT_FAILURE) { - error_msg("Couldnt seek to ar file"); - } - - /* open a stream of decompressed data */ - uncompressed_stream = fdopen(gz_open(deb_stream, &gunzip_pid), "r"); - - output_buffer = extract_archive(uncompressed_stream, out_stream, deb_extract_list, extract_function, prefix); - - gz_close(gunzip_pid); - fclose(deb_stream); - fclose(uncompressed_stream); - free(ared_file); - - return(output_buffer); -}
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